"Some of the founders of Infosys, including Narayana Murthy, Nandan Nilekani and Dinesh K and some of their family members as well as wife of co-founder S D Shibulal have announced that they have sold 32.6 million shares of Infosys for approximately Rs 6,484 crore," a statement issued by Deutsche Equities India said.
The sale was executed by Deutsche Equities India at an average price of Rs 1,988.87.
This constitutes about 2.8 per cent of shares outstanding, it added.
Murthy and family sold 12 million shares (23.3 per cent of their holding), Nilekani and family 12 million shares (31.3 per cent of their holding), Dinesh and family 6.2 million shares (21.5 per cent of their holding) and Kumari Shibulal 2.4 million shares (9.6 per cent of their holding).
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Reacting to the news, shares of the IT major tumbled 4.76 per cent to Rs 1,971 at the BSE, becoming the top loser among the 30-Sensex constituents.
The shares were sold to institutional investors both FIIs and domestic, the statement said.
Infosys shares have been up 21.4 per cent since the beginning of the year and up 8.9 per cent in the last two months.
The last of the founders stepped down from the board in October this year with former SAP Board member Vishal Sikka taking over as the CEO.